move whatsnew note

Author: cwhanse

docs/sphinx/source/whatsnew/v0.15.1.rst

@@ -29,7 +29,8 @@ Enhancements
 ~~~~~~~~~~~~
 * Use ``k`` and ``cap_adjustment`` from :py:func:`pvlib.pvsystem.Array.module_parameters` in :py:func:`pvlib.pvsystem.PVSystem.pvwatts_dc`
   (:issue:`2714`, :pull:`2715`)
-  
+* Include `ross` and `faiman_rad` in the allowed models within 
+  :py:meth:`pvlib.pvsystem.PVSystem.get_cell_temperature` (:issue:`2625`, :pull:`2631`)  
 
 Documentation
 ~~~~~~~~~~~~~
@@ -84,4 +85,4 @@ Contributors
 * Rohan Saxena (:ghuser:`r0hansaxena`)
 * Marco Fumagalli (:ghuser:`fuma900`)
 * Jean-Baptiste Pasquier (:ghuser:`pasquierjb`)
-
+* Rodrigo Amaro e Silva (:ghuser:`ramaroesilva`)